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OpenStudy (anonymous):
Simplify the rational expression. 4x^2 − 20x/x^3 − 125
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OpenStudy (earthcitizen):
\[x/(x ^{2}+5x+25)\]
OpenStudy (anonymous):
lol, wrong
OpenStudy (earthcitizen):
lol, how ?
OpenStudy (earthcitizen):
\[(4x^2 − 20x)/(x^3 − 125) \] divide num by 4, \[x(x-5)/(x^3 - 5^3) = x(x-5)/((x-5)(x^2+5x+25) = x/(x^2+5x+25)\]
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